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Re: Specs on B212 Valve Guides? Posted by Justin VanAbrahams [Email] (#32) [Profile/Gallery] (more from Justin VanAbrahams) on Fri, 22 Mar 2019 12:24:18 In Reply to: Re: Specs on B212 Valve Guides?, Cmyles [Profile/Gallery] , Fri, 22 Mar 2019 11:43:30 Members do not see ads below this line. - Help Keep This Site Online - Signup |
The things I know:
The same actual exhaust valve #9165598 is specified for all pre-T7 16v heads, so that supports your "small casting difference" angle.
There are two inlet valves for pre-T7 heads. #7484801 is for the "long" heads (-1993) and #30546916 for the "short" heads (1994+).
There are three guides. #7560154 for B202 heads, #7480577 for B212 and "long" B234 heads, and #9185612 for "short" B204 and B234 heads. They are 49mm, 45mm, and 42.5mm respectively. Same bores.
Specs for valves exist, but I don't know them offhand. I've been working off EPC numbers to infer specs from what works where. :)
After talking with the machine shop, the current plan is to use #7560154 (49mm) guides and hack 4mm off. Then never deal with another B212/B234 head again. :D
posted by 66.60.157...
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